There are limited risks of messing up with your car SW but if you are careful, follow step by step instructions and know and understand what you are doing, it may be OK to go ahead. Never try to guess and do it, be absolutely sure for your steps, clarify your doubts before you proceed. There are experts and on the many forum willing to help you, don’t hesitate to ask even a silliest question. Never-the-less, if you want to try new unknown settings which others have not tried, believe me, you are playing with fire.